MVC Data Annotation For Not Equal

Question

1.00/5 (1 vote)

See more:

Hi Everybody,

I have a Model in which have Two Properties that i need to compare and they properties should not equal.

Public class Customer
{
public string NewPassword {get; set;}
public string OldPassword {get; set;}
}

Is there any attribute avalable for same like : Not Compare

Thanks

Posted 2-Jul-13 2:22am

Anubhava Dimri

Updated 27-Jun-19 10:48am

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Denis Shemenko · Answer 1 · 2013-07-02T04:37:00

Go to VS.
Create new project of type MVC Application -> Internet Application.
Then go to Models folder and look at AccountModels.

Are you see this? :

C#

[Required]
[StringLength(100, ErrorMessage = "Value {0} must be greater length than {2} symbols.", MinimumLength = 6)]
[DataType(DataType.Password)]
[Display(Name = "New password")]
public string NewPassword { get; set; }

[DataType(DataType.Password)]
[Display(Name = "Confirm Password")]
[Compare("NewPassword", ErrorMessage = "New Password and Confirm Password are not equal.")]
public string ConfirmPassword { get; set; }

How do you like this standart attribute "Compare"?

UPD: Sorry not properly understand you from first time.

Arvic Rivera · Answer 2 · 2019-06-27T10:48:00

maybe something like this

C#

public class NotEqualAttribute : ValidationAttribute
{
  private string OtherProperty { get; set; }

  public NotEqualAttribute(string otherProperty) 
  {
    OtherProperty = otherProperty;
  }

  protected override ValidationResult IsValid(object value, ValidationContext validationContext)
  {
    // get other property value
    var otherPropertyInfo = validationContext.ObjectType.GetProperty(OtherProperty);
    var otherValue = otherPropertyInfo.GetValue(validationContext.ObjectInstance);
    
    // verify values
    if (value.ToString().Equals(otherValue.ToString()))
      return new ValidationResult(string.Format("{0} should not be equal to {1}.", validationContext.MemberName, OtherProperty));
    else
      return ValidationResult.Success;
  }
}

usage:

C#

[Required]
public string OldPassword { get; set; }
[Required]
[NotEqual("OldPassword")]
public string NewPassword{ get; set; }

MVC Data Annotation For Not Equal

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0